A voltaic cell is constructed based on the oxidation of zinc metal and the reduc

Question

A voltaic cell is constructed based on the oxidation of zinc metal and the reduction of silver (I) ions. Solutions of 1.00 M silver nitrate and zinc nitrate also were used. The anode is on the left, the cathode, on the right. Where does reduction occur? (a) a (b) b (c) c (d) d (e) e Which statement about a cathode in a voltaic cell is NOT correct? (a) Oxidation occurs at the cathode. (b) Reduction occurs at the cathode. (c) Usually the cathode is a metal strip. (d) In the external circuit, electrons flow toward the cathode. (e) Chemical species can have their oxidation number decreased at the cathode. A voltaic cell is constructed based on the reaction of Zn(s) with Pb^2+ (aq) producing Zn^2+ (aq) and Pb (s). Identify the correct cell diagram. (a) Zn^2+ (aq) | Pb^2+ (aq) || Zn (s) | Pb (s) (b) Zn (s) | Zn^2+ (aq) || Pb^2+ (aq) | Pb (s) (c) Zn (s) | Pb^2+ (aq) || Zn^2+ (aq) | Pb (s) (d) Pb^2+ (aq) | Pb (s) || Zn (s) | Zn^2+ (aq) (e) Pb (s) | Pb^2+ (aq) || Zn^2+ (aq) | Zn (s) Which of the following statements regarding reduction potentials is NOT correct? (a) Higher reduction potentials are associated with stronger reducing agents. (b) As reduction potential increases, the case of reduction increases. (c) A substance with a higher reduction potential will oxidize a substance with a lower reduction potential. (d) Metals such as sodium and potassium are strong reducing agents. (e) The reduction potential of substance depends on conditions such as concentration and pH. Where do you expect to find elements that have high reduction potentials on the periodic table? (a) on the right (except for the last group) (b) in the middle left (c) in the top left (d) at the bottom (e) in the transition metals

Explanation / Answer

35. In cathode (option b) reduction takes place

36. Oxidation occur at cathode is incorrect statement.

37 option b is correct cell diagram

39. Transition metals have highest reduction potential

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